Question

4. In an AP, if d = - 4, n = 7, an = 4,then find a

Answer 1

Answer:

$\huge\mathfrak\blue{☆Answer☆}$

Step-by-step explanation:

Given=>

d=-4

n=7

an=4.

So a+(n-1)d=an.

=> a+(7-1)*-4=4

=> a+(6)*(-4)=4

=> a+(-24)=4

=>a-24=4

=>a=4+24

So a =28.

So the value of a(first term) is 28 which is the required answer.

HOPE IT HELPS.